Shulou(Shulou.com)06/01 Report--

Notice a few small details when Oracle database is installed in 12c release 2 OUI, recorded as follows:

1. In the DBCA wizard, an orcl CDB database and a pluggable database for orclpdb are specified by default. In the previous version, you had to fill in this piece yourself. To put it this way, it is to try to lure you to multi-tenants.

two。 Flashback recovery areas are no longer specified. Yes, from this version, oui will no longer check the flashback recovery area for you by default. This option can go through several versions, and Oracle may know how much of this feature is enabled in a production environment. Even if the flashback area is used, there is no effective backup strategy, which will easily lead to a series of problems such as database archiving failure.

3. The default redo log is resized to 200m. Who can tell which version of oracle the previous 50m started? I can't remember it for a long time. How many of the traditional 50m redo log can meet the actual business volume? Now is the era of big data!

I think oracle may have done a lot of market research or received customer feedback before releasing the 12cR2 version, and made good improvements in many details. It is not strange that I stood up for the majority of users before.

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